Patents by Inventor Irwin Schafer

Irwin Schafer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bandage for continuous application of biologicals
    Patent number: 5487889
    Abstract: The present invention provides a biological bandage, comprising an envelope enclosing cells which secrete biologically active cellular products such as growth factors, which promote the healing of wounds. The envelope is further comprised of a permeable bottom membrane through which the cellular product diffuses, and a top membrane. Preferably the bandage has a separator interposed between the two membranes. This invention also relates to a method for treating wounds. The bandage provides a continuous, uniform source of fresh cellular product.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: January 30, 1996
    Assignees: The MetroHealth System, The University of Akron, Case Western Reserve University
    Inventors: Richard L. Eckert, Daniel J. Smith, Irwin Schafer